| Tradescantia saxicola Greenm., 1903 |
| Tradescantia schiedeana Kunth, 1843 |
| Tradescantia schippii D.R. Hunt, 1983 |
| Tradescantia schlechtendalii Kunth, 1843 |
| Tradescantia schomburgkiana Kunth, 1843 |
| Tradescantia semisomna Standl., 1937 |
| Tradescantia sillamontana Matuda, 1955 |
| Tradescantia soconuscana Matuda, 1955 |
| Tradescantia spathacea Sw., 1788 |
| Tradescantia speciosa Kunth, 1815 |
| Tradescantia standleyi Steyerm., 1944 |
| Tradescantia stenophylla Brandegee, 1909 |
| Tradescantia subramosa Matuda, 1960 |
| Tradescantia subscaposa C.B. Clarke ex Donn. Sm., 1890 |
| Tradescantia subtilis Matuda, 1960 |
| Tradescantia tacanana Standl., 1940 |
| Tradescantia tepoxtlana Matuda, 1956 |
| Tradescantia tolimanensis Matuda, 1957 |
| Tradescantia tonalamonticola Matuda, 1955 |
| Tradescantia triflora M. Martens & Galeotti, 1842 |